constitution

A constitution is a system of laws and principles or the structure or composition of someone or something. (noun)

An example of constitution is the document that John Hancock famously signed, the United States Constitution.
An example of constitution is great mental strength in a person.

See constitution in Webster's New World College Dictionary

noun

the act of setting up or making up; establishment, appointment, or formation
the way in which a thing is made up; structure; organization; makeup
the physical, or rarely mental, makeup of a person: a man of strong constitution
the way in which a government, state, society, etc. is organized
a decree, regulation, or custom
1. the system of fundamental laws and principles of a government, state, society, corporation, etc., written or unwritten
2. a document or set of documents in which these laws and principles are written down

See constitution in American Heritage Dictionary 4

(kŏnˌstĭ-to͞oˈshən, -tyo͞oˈ-)

noun

The act or process of composing, setting up, or establishing.
a. The composition or structure of something; makeup.
b. The physical makeup of a person: Having a strong constitution, she had no trouble climbing the mountain.
a. The system of fundamental laws and principles that prescribes the nature, functions, and limits of a government or another institution.
b. The document in which such a system is recorded.
c. Constitution The fundamental law of the United States, framed in 1787, ratified in 1789, and variously amended since then.